CN205789850U - Low-tension fuse - Google Patents
Low-tension fuse Download PDFInfo
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- CN205789850U CN205789850U CN201620150773.2U CN201620150773U CN205789850U CN 205789850 U CN205789850 U CN 205789850U CN 201620150773 U CN201620150773 U CN 201620150773U CN 205789850 U CN205789850 U CN 205789850U
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Abstract
A kind of low-tension fuse, described low-tension fuse is multipole, every pole low-tension fuse includes housing, housing includes base and lid, adjacent two low-tension fuses are mutually close to stitched together by the lateral wall of the lateral wall of the base of one of them low-tension fuse with the lid of another low-tension fuse, the base of every pole low-tension fuse and the lateral wall of lid are respectively equipped with the first heat radiation groove and the second heat radiation groove, the second heat radiation mutual split of groove of the first heat radiation groove of the base of one of them low-tension fuse of adjacent two low-tension fuses and the lid of another low-tension fuse forms the radiating flow passage for heat radiation.When multipolar low-voltage fuse is installed side by side, hot-air can flow to the outside of entirety from fuse whole interior along radiating flow passage, solves multipolar low-voltage fuse problem of poor heat radiation when installing side by side；Base is respectively equipped with heat radiation groove, perfect heat-dissipating with covering.
Description
Technical field
This utility model relates to Low Voltage Electrical Apparatus, particularly relates to a kind of low-tension fuse.
Background technology
Fuse is the fuse-link of the built-in conduction of insulation crust; fuse-link is connected in circuit; when circuit being short-circuited or when the situation such as overload; electric current can become big; after exceeding setting a period of time; the heat himself produced makes fuse-link melt, so that a kind of current protector that circuit disconnects.Fuse is widely used in high and low voltage electric distribution system and control system and electrical equipment, as short circuit and the protector of overcurrent, is to apply one of most common protection device.
In existing frequently-used low-tension fuse, the shell heat dissipation design of product is the best, and when causing product to use, temperature rise is higher, when circuit is short-circuited or during the situation such as overload, substantial amounts of heat can be produced during fuse work cannot shed fuse, when particularly multipole product is installed side by side；Owing to heat cannot shed; cause shell melting welding; fuse-link can pull out out; product casing does not the most position the design of electrically conductive socket; fuse-link loose contact usually can be caused to produce amount of heat assemble; often result in the generation of electrical fire accident, bring the loss of the person and property to user, bring puzzlement greatly to the life of people.Additionally, interiors of products structure is complicated, process and assemble the most pretty troublesome.
Summary of the invention
The purpose of this utility model is to overcome the defect of prior art, it is provided that well, assembling is simple, the low-tension fuse that reliability is high for a kind of simple in construction, heat radiation.
For achieving the above object, this utility model adopts the technical scheme that
A kind of low-tension fuse, described low-tension fuse is multipole, every pole low-tension fuse includes housing, housing includes base 1 and lid 2, adjacent two low-tension fuses are mutually close to stitched together by the lateral wall of the lateral wall of the base 1 of one of them low-tension fuse with the lid 2 of another low-tension fuse, the base 1 of described every pole low-tension fuse and the lateral wall of lid 2 are respectively equipped with the first heat radiation groove 101 and the second heat radiation groove, the second heat radiation mutual split of groove of the first heat radiation groove 101 of the base 1 of one of them low-tension fuse of adjacent two low-tension fuses and the lid 2 of another low-tension fuse forms the radiating flow passage 111 for heat radiation.
Further, also include holder 6, be positioned at socket 4 and the fuse-link 5 of holder 6 both sides；Described holder 6 is pivotably attached to enclosure interior, and the middle part of holder 6 is provided with melts groove 61 for the load accommodating fuse-link 5；During installation, after the oblique insertion of fuse-link 5 carries molten groove 61, rotating fuse-link 5 and make fuse-link 5 be in level, the two ends of fuse-link 5 are connected with the socket 4 of both sides respectively.
Further, described radiating flow passage 111 is convex shape groove, and the two ends of radiating flow passage 111 extend to the two ends of low-tension fuse；Radiating flow passage 111 includes cascade groove 111a at two ends and the square groove 111b at middle part, and cascade groove 111a is second order step, and the bottom of cascade groove 111a is provided with the arc section 111c for evading the connector 7 connecting base 1 and lid 2.
Further, described base 1 being provided with multiple heat dissipation paths 13, heat dissipation channel 13 is the thermal vias running through the strip being located at base 1 sidewall；Described heat dissipation channel 13 is respectively arranged on two ends sidewall and the bottom sidewall of base 1.
Further, base socket slot 12 and the lid socket slot 22 of mounting receptacle 4 it is respectively provided with on described base 1 and lid 2, one end of base socket slot 12 is provided with and first fixes post 19 for be connected with one end of socket 4, and the first middle part fixing post 19 is provided with the first fixed groove 191 for one end of mounting receptacle 4.
Further, described lid 2 is provided with for socket 4 carries out spacing socket spacing block set 28 in the both sides of lid socket slot 22, and described socket spacing block set 28 includes rectangular cam 281 and is located at rectangular cam 281 side and plays the wedge shape reinforcing plate 282 of booster action.
Further, the medial wall of described first fixed groove 191 is protruded and is provided with fastening projection 191a that the one end to socket 4 plays the role of fastening.
Further, described holder 6 also includes front contact chip 62, rear contact chip 63 and display lamp 65；The bottom of base 1 is provided with the holder being pivotally connected with holder 6 around axle 15, the side that holder 6 is installed with base 1 is provided with holder around the corresponding axle sleeve of axle 15 66, one end of holder 6 is provided with lever 64, carry molten groove 61 and be located at the other end of holder 6, it is internal that front contact chip 62 and rear contact chip 63 are fixed on holder 6, one end of front contact chip 62 and rear contact chip 63 stretches to the two ends carrying molten groove 61 respectively, and the other end of front contact chip 62 and rear contact chip 63 two ends with display lamp 65 respectively are connected.
Further, it is installed together by connector 7 between described base 1 and lid 2；The two ends of connector 7 are each passed through base 1 and lid 2 and base 1 and cover the lateral wall of 2 and snap connection；Described base 1 and lid 2 are respectively equipped with the two ends with connector 7 and install the base connector groove 17 and lid connector groove 27 coordinated, and the buckle snapped connection with base 1 and lid 2 that is respectively arranged at two ends with of described connector 7 links up with 71.
Further, described base 1 protrude above be provided with install with connector 7 coordinate second fix post 199, described base connector groove 17 runs through is located at the second middle part fixing post 199, the middle part of connector 7 is protruded and is provided with spacing preiection 73, and spacing preiection 73 is snapped in the second top fixing post 199 and carries out spacing to connector 7；The middle part of described buckle hook 71 is provided with the first groove 711 and forms two end arms 72, the middle part of described base connector groove 17 is provided with for one end of connector 7 is carried out spacing limited post 170, base connector groove 17 is divided into two to install the second groove 171 coordinated with two end arms 72 by limited post 170, and two end arms 72 are provided with, to both sides extension, the buckle crotch 721 that the lateral wall with base 1 and lid 2 snaps connection.
This utility model low-tension fuse is respectively equipped with the first heat radiation groove and the second heat radiation groove at the base of every pole low-tension fuse with covering, multipolar low-voltage fuse forms radiating flow passage after assembly, hot-air can flow to the outside of entirety from the fuse whole interior that multipole is installed side by side along radiating flow passage, solves multipolar low-voltage fuse problem of poor heat radiation when installing side by side；Base is respectively equipped with heat radiation groove with covering, and adds the width of radiating flow passage, perfect heat-dissipating to greatest extent.Radiating flow passage makes full use of the convex shape structure of the housing of existing low-tension fuse so that the volume of radiating flow passage reaches and maximizes as far as possible, increases the heat dispersion of low-tension fuse.It is installed together by connector between base and lid, assembles efficient and convenient.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model low-tension fuse base；
Fig. 2 is the schematic perspective view inside this utility model low-tension fuse base；
Fig. 3 is the schematic diagram of this utility model low-tension fuse base outer surface；
Fig. 4 is the structural representation of this utility model low-tension fuse lid；
Fig. 5 is the schematic perspective view of this utility model low-tension fuse lid；
Fig. 6 is this utility model low-tension fuse internal structure schematic diagram；
Fig. 7 is this utility model low-tension fuse holder structural representation；
Fig. 8 is that this utility model low-tension fuse dismounts fuse blows body schematic diagram；
Fig. 9 is this utility model low-tension fuse connected piece structure schematic diagram；
Figure 10 is the structural representation that this utility model low-tension fuse three is installed extremely side by side.
Detailed description of the invention
The embodiment be given below in conjunction with accompanying drawing 1 to 10, further illustrates the detailed description of the invention of low-tension fuse of the present utility model.Low-tension fuse of the present utility model is not limited to the following description.
As Figure 1-10 shows, low-tension fuse includes housing, is located at the binding post 3 at enclosure interior two ends, the socket 4 being connected respectively, fuse-link 5 and holder 6 with the binding post 3 at two ends.Housing is mutually fastened by base 1 and lid 2 and forms, holder 6 is pivotably attached to housing central section, socket 4 lays respectively at the both sides of holder 6, and two binding posts 3 electrically connect with two corresponding sockets 4 respectively, and the middle part of holder 6 is provided with melts groove 61 for the load accommodating fuse-link 5；During installation; after the oblique insertion of fuse-link 5 carries molten groove 61; rotating fuse-link 5 makes fuse-link 5 be in level; the two ends of fuse-link 5 are connected with the socket 4 of both sides respectively; fuse-link is accessed in circuit, and after electric current exceedes setting a period of time, the heat that fuse-link 5 produces with himself makes Melt molten; circuit disconnects, thus provides short circuit and overload protection for circuit.
As illustrated in figs. 3 and 10, the low-tension fuse be given in figure is three poles, and three pole low-tension fuses are arranged side by side, it is therefore apparent that low-tension fuse is it can also be provided that more multipole.Adjacent two fuses are mutually close to stitched together by the lateral wall of the lateral wall of the base 1 of one of them low-tension fuse with the lid 2 of another low-tension fuse, being respectively equipped with the first heat radiation groove 101 and the second heat radiation groove on the base 1 of fuse and the lateral wall of lid 2, the second heat radiation mutual split of groove of the first heat radiation groove 101 of the base 1 of one of them low-tension fuse of adjacent two low-tension fuses and the lid 2 of another low-tension fuse forms the radiating flow passage 111 for heat radiation.This utility model low-tension fuse is respectively equipped with the first heat radiation groove and the second heat radiation groove at the base of every pole low-tension fuse with covering, multipolar low-voltage fuse forms radiating flow passage after assembly, hot-air can flow to the outside of entirety from the fuse whole interior that multipole is installed side by side along radiating flow passage, solves multipolar low-voltage fuse problem of poor heat radiation when installing side by side；Base is respectively equipped with heat radiation groove with covering, and adds the width of radiating flow passage, perfect heat-dissipating to greatest extent.
Specifically, described radiating flow passage 111 is provided in the convex shape groove of chassis outer side wall, and the two ends of radiating flow passage 111 extend to the two ends of low-tension fuse；Radiating flow passage 111 includes cascade groove 111a at two ends and the square groove 111b at middle part, and cascade groove 111a is second order step, and the bottom of cascade groove 111a is provided with the arc section 111c for evading the connector 7 connecting base 1 and lid 2.Radiating flow passage 111 makes full use of the convex shape structure of the housing of existing low-tension fuse so that the volume of radiating flow passage 111 reaches and maximizes as far as possible, increases the heat dispersion of low-tension fuse.
As shown in Figure 2, the sidewall of the left side of fuse base, right side and bottom is respectively provided with multiple heat dissipation paths 13, the position of the heat dissipation channel 13 of the left and right sides faces, and hot-air can form convective motion, and the heat dissipation channel 13 of two ends sidewall and bottom sidewall makes gas can form circulation.Specifically, heat dissipation channel 13 is arranged on bottom surface and the side of fuse base, presents rail shape structure, is made up of the little radiating groove of many strips, can prevent foreign body from entering fuse or blocking heat dissipation channel.Particularly, heat dissipation channel can also be arranged on other positions of side of fuse.
As shown in Fig. 1,2,4,5, the two ends of the base of fuse are symmetrical arranged a pair base socket slot 12, and base socket slot 12 is rectangular, and lid 2 is provided with in the corresponding lid socket slot 22 of base socket slot 12, base socket slot and lid socket slot collectively constitute socket slot, for positioning socket.One end of base socket slot 12 is provided with and first fixes post 19 for be connected with one end of socket 4, and the first middle part fixing post 19 is provided with the first fixed groove 191 for one end of mounting receptacle 4.
During installation, one end of socket 4 is inserted in the first fixed groove 191 and is deformed upon by fastening protruding 191a fastening, the one end making socket 4 consolidates and is installed in the first fixed groove 191, socket 4 by the base socket slot 12 on base 1 and lid 2 together with lid socket slot 22 spacing fixing, the mounting structure of socket 4 is solid and reliable.
Specifically, described lid 2 is provided with for socket 4 carries out spacing socket spacing block set 28 in the both sides of lid socket slot 22, and described socket spacing block set 28 includes rectangular cam 281 and is located at rectangular cam 281 side and plays the wedge shape reinforcing plate 282 of booster action.Socket 4 is carried out spacing from socket 4 both sides by socket spacing block set 28 further, prevents socket 4 from coming off, and the mounting structure of socket 4 is more firm.Described rectangular cam and wedge shape reinforcing plate are integrated injection formings with lid 2.Socket spacing block set 28 can ensure that socket is fixed, thus ensures that socket contacts well with fuse-link.Particularly, the quantity of socket spacing block set 28 and shape can make change according to practical situation, and socket spacing block set 28 can be set to multiple, and the shape of socket spacing block set 28 can be cylindric or other shapes.The medial wall of the first fixed groove 191 is protruded and is provided with fastening projection 191a that the one end to socket 4 plays the role of fastening.One end of socket 4 is inserted in the first fixed groove 191 and is deformed upon by fastening protruding 191a fastening so that one end of socket 4 is firm to be installed in the first fixed groove 191.Two sockets 4 of both sides are identical, easy to process, assemble quick.
As shown in Figures 6 and 7, holder 6 includes that columned load melts groove 61, front contact chip 62, rear contact chip 63 and display lamp 65.The bottom of base 1 is provided with the holder being pivotally connected with holder 6 around axle 15, the side that holder 6 is installed with base 1 is provided with holder around the corresponding axle sleeve of axle 15 66, one end of holder 6 is provided with lever 64, described load melts groove 61 is located at the other end of holder 6, it is internal that front contact chip 62 and rear contact chip 63 are fixed on holder 6, one end of front contact chip 62 and rear contact chip 63 stretches to the two ends carrying molten groove 61 respectively, and the other end of front contact chip 62 and rear contact chip 63 two ends with display lamp 65 respectively are connected.Specifically, holder Upper shaft sleeve 66 can be around holder pivoting.Rear contact chip 63 is the arc structure that plate-shape metal sheet curves, and the one end, side being positioned at axle sleeve 66 connects a pole of display lamp 65；Front contact chip 62 is that then the flexure strip of an arcuation is connected with another pole of display lamp 65 by wire.When, after circuit ON, display lamp may be used to indicate whether fuse-link fuses.
As shown in Figure 8, especially, when fault fuse-link 5 changed by needs, first deenergization, pulls lever 64 and makes holder around holder pivoting until carrying the molten oblique top of groove 61, take out the fuse-link broken down, load new fuse-link, pulling lever 64 the most again makes holder reset, and at this time fuse-link 5 is in level, and the two ends of fuse-link 5 are connected with the socket 4 of both sides respectively.Switching on power, fuse is by display lamp short circuit, and display lamp 65 does not works, and shows that contact is good, installs successfully, and fuse-link 5 the most normally works.
As seen in figs, specifically, fuse entirety presents a convex shape irregular polygon structure, and when base lies on the ground, the trailing flank of base is jagged；Fuse cover is a convex shape platy structure.During assembling, holder first loading base pinch gripping member on axle, then lid is loaded onto, holder can be used for loading and unloading fuse-link around holder pivoting.The top level of the side of base surrounding forms square groove 16 with vertical plane, the surrounding relevant position of fuse cover medial surface is then provided with square projection 26, and the square projection 26 covered snaps in the square groove 16 on base side can make enclosure closed tight.Fuse shell is internally formed receiving binding post, the space of the internal structures such as socket.
As it is shown in figure 9, be installed together by connector 7 between base 1 and lid 2.The two ends of connector 7 are each passed through base 1 and lid 2 and base 1 and cover the lateral wall of 2 and snap connection；Described base 1 and lid 2 are respectively equipped with the two ends with connector 7 and install the base connector groove 17 and lid connector groove 27 coordinated, and the buckle snapped connection with base 1 and lid 2 that is respectively arranged at two ends with of described connector 7 links up with 71.Base 1 and lid 2 link together by connector, the buckle hook 71 at connector 7 two ends be each passed through base connector groove 17 and lid connector groove 27 after with base 1 and cover the lateral wall of 2 and snap connection；Connector replaces fixing trip bolt, and connector can use isolation material, places internal arc and jumps out, improves Electrical Safety.
As shown in Figure 1, 2, specifically, base 1 protrude above be provided with install with connector 7 coordinate second fix post 199, described base connector groove 17 runs through is located at the second middle part fixing post 199, the middle part of connector 7 is protruded and is provided with spacing preiection 73, the middle part of base connector groove 17 is provided with for one end of connector 7 is carried out spacing limited post 170, and base connector groove 17 is divided into two and installs the second groove 171 coordinated with two end arms 72 by limited post 170；Article two, end arms 72 is provided with, to both sides extension, the buckle crotch 721 that the lateral wall with base 1 and lid 2 snaps connection.
During installation, connector 7 two ends inserted base connector groove 17 and lid connector groove 27 respectively, the first groove 711 limited post 170 of one end of connector 7 is spacing, installation site for spacing connector 7, the installation site of connector 7 is carried out the most spacing by spacing preiection 73 simultaneously, first groove 711 makes again buckle hook 71 existence elasticity, prevents from being easily installed.Connector can use isolation material, places internal arc and jumps out, improves Electrical Safety, also achieves a base and lid is bound up conveniently and efficiently.
Above content is to combine concrete preferred implementation further detailed description of the utility model, it is impossible to assert that of the present utility model being embodied as is confined to these explanations.For this utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, it is also possible to make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (10)
1. a low-tension fuse, described low-tension fuse is multipole, every pole low-tension fuse includes housing, housing includes base (1) and lid (2), adjacent two low-tension fuses are mutually close to stitched together by the lateral wall of the lateral wall of the base (1) of one of them low-tension fuse with the lid (2) of another low-tension fuse, it is characterized in that: the base (1) of described every pole low-tension fuse and the lateral wall of lid (2) are respectively equipped with the first heat radiation groove (101) and the second heat radiation groove, the second heat radiation mutual split of groove of the first heat radiation groove (101) of the base (1) of one of them low-tension fuse of adjacent two low-tension fuses and the lid (2) of another low-tension fuse forms the radiating flow passage (111) for heat radiation.
Low-tension fuse the most according to claim 1, it is characterised in that: also include holder (6), be positioned at socket (4) and the fuse-link (5) of holder (6) both sides；Described holder (6) is pivotably attached to enclosure interior, and the middle part of holder (6) is provided with melts groove (61) for the load accommodating fuse-link (5)；During installation, after the oblique insertion of fuse-link (5) carries molten groove (61), rotating fuse-link (5) makes fuse-link (5) be in level, and the two ends of fuse-link (5) are connected with the socket (4) of both sides respectively.
Low-tension fuse the most according to claim 1 or claim 2, it is characterised in that: described radiating flow passage (111) is convex shape groove, and the two ends of radiating flow passage (111) extend to the two ends of low-tension fuse；Radiating flow passage (111) includes the cascade groove (111a) at two ends and the square groove (111b) at middle part, cascade groove (111a) is second order step, and the bottom of cascade groove (111a) is provided with the arc section (111c) for evading the connector (7) connecting base (1) and lid (2).
Low-tension fuse the most according to claim 1 or claim 2, it is characterized in that: be provided with multiple heat dissipation paths (13) on described base (1), heat dissipation channel (13) is the thermal vias running through the strip being located at base (1) sidewall；Described heat dissipation channel (13) is respectively arranged on two ends sidewall and the bottom sidewall of base (1).
Low-tension fuse the most according to claim 2, it is characterized in that: on described base (1) and lid (2), be respectively provided with base socket slot (12) and the lid socket slot (22) of mounting receptacle (4), one end of base socket slot (12) is provided with and first fixes post (19) for be connected with one end of socket (4), and the first middle part fixing post (19) is provided with the first fixed groove (191) for one end of mounting receptacle (4).
Low-tension fuse the most according to claim 5, it is characterized in that: described lid (2) is provided with for socket (4) carries out spacing socket spacing block set (28) in the both sides of lid socket slot (22), described socket spacing block set (28) includes rectangular cam (281) and is located at rectangular cam (281) side and plays the wedge shape reinforcing plate (282) of booster action.
Low-tension fuse the most according to claim 5, it is characterised in that: the medial wall of described first fixed groove (191) is protruded and is provided with fastening projection (191a) that the one end to socket (4) plays the role of fastening.
Low-tension fuse the most according to claim 2, it is characterised in that: described holder (6) also includes front contact chip (62), rear contact chip (63) and display lamp (65)；The bottom of base (1) is provided with the holder being pivotally connected with holder (6) around axle (15), the side that holder (6) is installed with base (1) is provided with holder around axle (15) corresponding axle sleeve (66), one end of holder (6) is provided with lever (64), carry molten groove (61) and be located at the other end of holder (6), it is internal that front contact chip (62) and rear contact chip (63) are fixed on holder (6), one end of front contact chip (62) and rear contact chip (63) stretches to the two ends carrying molten groove (61) respectively, the other end of front contact chip (62) and rear contact chip (63) two ends with display lamp (65) respectively are connected.
Low-tension fuse the most according to claim 1, it is characterised in that: it is installed together by connector (7) between described base (1) and lid (2)；The two ends of connector (7) are each passed through base (1) and lid (2) and base (1) and cover the lateral wall of (2) and snap connection；Described base (1) and lid (2) are respectively equipped with the two ends with connector (7) and install base connector groove (17) and lid connector groove (27) coordinated, and the buckle snapped connection with base (1) and lid (2) that is respectively arranged at two ends with of described connector (7) links up with (71).
Low-tension fuse the most according to claim 9, it is characterized in that: described base (1) protrude above be provided with install with connector (7) coordinate second fix post (199), described base connector groove (17) is run through and is located at the second middle part fixing post (199), the middle part of connector (7) is protruded and is provided with spacing preiection (73), and spacing preiection (73) is snapped in the second top fixing post (199) and carries out spacing to connector (7)；The middle part of described buckle hook (71) is provided with the first groove (711) and forms two end arms (72), the middle part of described base connector groove (17) is provided with for one end of connector (7) carries out spacing limited post (170), base connector groove (17) is divided into two to install the second groove (171) coordinated with two end arms (72) by limited post (170), and two end arms (72) are provided with, to both sides extension, the buckle crotch (721) that the lateral wall with base (1) and lid (2) snaps connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620150773.2U CN205789850U (en) | 2016-02-29 | 2016-02-29 | Low-tension fuse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620150773.2U CN205789850U (en) | 2016-02-29 | 2016-02-29 | Low-tension fuse |
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| Publication Number | Publication Date |
|---|---|
| CN205789850U true CN205789850U (en) | 2016-12-07 |
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| CN201620150773.2U Active CN205789850U (en) | 2016-02-29 | 2016-02-29 | Low-tension fuse |
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| CN (1) | CN205789850U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277289A (en) * | 2018-03-15 | 2019-09-24 | 维纳尔电气系统有限公司 | NH Fuse Load disconnect switch |
-
2016
- 2016-02-29 CN CN201620150773.2U patent/CN205789850U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277289A (en) * | 2018-03-15 | 2019-09-24 | 维纳尔电气系统有限公司 | NH Fuse Load disconnect switch |
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